Changed version number

Without this it will try to install osmnx version 2, which had breaking
changes and causes prettymaps to fail with the error
```
AttributeError: module 'osmnx' has no attribute 'project_gdf'. Did you mean: 'project_graph'?
```

requirements.txt

@@ -1,5 +1,5 @@
 numpy>=1.20,<1.25
 matplotlib>=3.9.0
 shapely>=2.0.0
-osmnx>=1.9.3
+osmnx>=1.9.3,<2.0
 ipykernel>=6.29.5

setup.py

@@ -7,7 +7,7 @@ presets_dir = os.path.abspath(os.path.join(os.path.pardir, "presets"))
 
 setup(
     name="prettymaps",
-    version="v1.3.0",
+    version="v1.3.1",
     description="A simple python library to draw pretty maps from OpenStreetMap data",
     long_description=parent_dir.joinpath("README.md").read_text(),
     long_description_content_type="text/markdown",